Experimental Physics and
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Hi, I am trying to communicate a S7200 Smart PLC ( CPU ST-40) with EPICS using the modbus RTU protocol on linux-x86_64, but unable to do that The error is: . >>drvModbusAsyn::doModbusIO port A0_Out_Bits error calling writeRead, error=, nwrite=6/6, nread=0 Do I need a Serial communication port Driver for the PLC to be installed first ? I doubt it is possible for this plc. I have tried communication using Modbus Poll but it shows a Timeout Error. Kindly let me know if its possible? -regards Arnab
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ANJ, 21 Dec 2017 |
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